Infiniti QX56 (Z62). Manual - part 343

 

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Infiniti QX56 (Z62). Manual - part 343

 

 

DAS

COMPONENT PARTS

DAS-409

< SYSTEM DESCRIPTION >

[BSW]

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Component Description

INFOID:0000000006223850

A.

Rear bumper removed condition

B.

Rear bumper removed condition

C.

Instrument lower panel (LH)

D.

Behind of instrument lower panel 
(LH)

Component

Description

ADAS control unit

• Being connected with side radar (LH and RH) via ITS communication, receives vehicle detection 

signal and transmits BSW indicator signal and BSW indicator dimmer signal to side radar

• Activates the warning buzzer and warning systems ON indicator

Side radar LH/ RH

• Being connected with ADAS control unit via ITS communication, transmits vehicle detection sig-

nal

• Receives BSW indicator signal and BSW indicator dimmer signal from ADAS control unit and 

transmits an indicator operation signal to BSW indicator LH/RH

• RH side radar equips right/left switching signal circuit for identifying LH or RH because the parts 

of side radar are common for right and left

BSW indicator LH/ RH

Receives BSW indicator operation signal from side radar LH/RH and turns OFF, turns ON or blinks

ABS actuator and electric unit 
(control unit)

Transmits vehicle speed signal to ADAS control unit via CAN communication

Warning systems switch

Inputs the switch signal to ADAS control unit

Warning systems ON indicator
(On the warning systems switch)

Indicates BSW system status

Warning buzzer

Receives buzzer signal from ADAS control unit and sounds buzzer.

Combination meter

• Receives BSW warning lamp signal via CAN communication
• Turns the BSW warning lamp ON/OFF according to the signals from the ADAS control unit via 

CAN communication

BCM

• Transmits turn indicator signal to ADAS control unit via CAN communication
• Transmits dimmer signal to ADAS control unit via CAN communication

TCM

Transmits the shift position signal to ADAS control unit via CAN communication

DAS-410

< SYSTEM DESCRIPTION >

[BSW]

SYSTEM

SYSTEM

System Description

INFOID:0000000006223851

SYSTEM DIAGRAM

ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

ADAS control unit receives signals via CAN communication. It also detects vehicle conditions that are neces-
sary for BSW control.

Input Signal Item

Output Signal Item

JSOIA0378GB

Transmit unit

Signal name

Description

TCM

CAN communication

Shift position signal

Receives a selector lever position

ABS actuator 
and electric unit 
(control unit)

CAN communication

Vehicle speed signal (ABS)

Receives wheel speeds of four wheels

BCM

CAN communication

Turn indicator signal

Receives an operational state of the turn signal lamp and 
the hazard lamp

Dimmer signal

Receives ON/OFF state of dimmer signal

Side radar LH, 
RH

ITS communication

Vehicle detection signal

Receives vehicle detection condition of detection zone

Warning sys-
tems switch

Warning systems switch signal 

Receives an ON/OFF state of the warning systems 
switch

Reception unit

Signal name

Description

Combination 
meter

CAN communication

BSW warning lamp signal

Transmits a BSW warning lamp signal to turn ON the 
BSW warning lamp

Side radar LH, 
RH

ITS communication

BSW indicator signal

Transmits a BSW indicator signal to turn ON the BSW 
indicator

BSW indicator dimmer signal

Transmits a BSW indicator dimmer signal to dimmer 
BSW indicator

Vehicle speed signal

Transmits a vehicle speed calculated by the ADAS 
control unit

Warning sys-
tems ON indi-
cator

Warning systems ON indicator signal

Turns ON the warning systems ON indicator

Warning buzz-
er

Warning buzzer signal

Activates the warning buzzer

DAS

SYSTEM

DAS-411

< SYSTEM DESCRIPTION >

[BSW]

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FUNCTION DESCRIPTION

• The BSW system can help alert the driver of other vehicles in adjacent lanes when changing lanes.
• The BSW system uses side radar installed near the rear bumper to detect vehicles in an adjacent lane.
• The side radar can detect vehicles on either side of vehicle within the detection zone shown as illustrated. 
• This detection zone starts from the outside mirror of vehicle and extends approximately 10 ft (3.0 m) behind

the rear bumper, and approximately 10 ft (3.0 m) sideways.

• The BSW system operates above approximately 32 km/h (20 MPH). 
• If the side radar detects vehicles in the detection zone, the BSW indicator illuminates.

• If the driver then activates the turn signal, a buzzer will sound twice and the BSW indicator will blink. 

NOTE:
A buzzer sounds if the side radar have already detected vehicles when the driver activates the turn signal. If
a vehicle comes into the detection zone after the driver activates the turn signal, then only the BSW indicator
blinks and no buzzer sounds.

BSW SYSTEM OPERATION DESCRIPTION

• ADAS control unit enables BSW system.
• The ADAS control unit turns on the BSW system when the warning systems switch is turned ON.
• Side radar detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to ADAS control

unit via ITS communication. 

• ADAS control unit starts the control as follows, based on a vehicle detection signal, turn signal and dimmer

signal transmitted from BCM via CAN communication: 

- BSW indicator signal and BSW indicator dimmer signal transmission to side radar. 
- Buzzer signal transmission to warning buzzer.
• Side radar transmits an indicator operation signal to the BSW indicator according to BSW indicator signal

and BSW indicator dimmer signal.

Operation Condition of BSW System

ADAS control unit performs the control when the following conditions are satisfied.
• When the warning systems switch in turned ON.
• When the vehicle drives at approximately 32 km/h (20 MPH) or more to the forward direction.

JSOIA0257GB

JSOIA0258GB

DAS-412

< SYSTEM DESCRIPTION >

[BSW]

SYSTEM

NOTE:
• After the operating conditions of warning are satisfied, the warning continues until the vehicle speed reaches

approximately 29 km/h (18 MPH) 

• The BSW system may not function properly, depending on the situation. Refer to 

DAS-417, "Precautions for

Blind Spot Warning"

.

BULB CHECK ACTION AND FAIL-SAFE INDICATION

*: If BSW initial state is ON, warning systems ON indicator continues turned ON.
NOTE:
• The condition is seen regardless BSW system status (ON/OFF).
• If either of the side radars is in factory-default mode, the BSW warning lamp blinks.
• New side radars are in factory-default mode.

Vehicle condition/Driver

s operation

BSW indicator

Warning systems 

ON indicator

Indication on the combination meter

Ignition switch:
OFF 

 ON

Approx. 2 sec. ON

Approx. 5 sec. ON

*

When DTC is detected

OFF

ON

Side radar is factory-default mode con-

dition

NOTE

OFF

*1

When radar blockage is detected

OFF

ON

*

2

JSOIA0374GB

JSOIA0254GB

JSOIA0255GB

JSOIA0255GB

 

 

 

 

 

 

 

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